Shirts are really cool, but as I read the title I thought:"Oh no... not again!"
Cause when I was an archer I found myself and my teacher out in the wild, we found this abandoned Medieval church and we throw arrows to its door
It was a common practice here in Italy during the Middle Age, and we didn't mean to offend God, we were just testing our skills.
Glad that you are promoting slinging this way, well done!
Greetings,
Mauro.